The second possible yet improbable explanation is that you’re drinking bacteria-contaminated water. You heard right, bacteria are extremely frequent even in water supplies in the U.S. The question is: are there several potentially harmful germs to make your water unsafe to drink?
In the great outdoors, water also close to organic fecal waste may be infected with disease-causing microorganisms. But even if you aren’t on a camping trip, chances are that you get in touch with waterborne pathogens in your home or public.
Let’s take giardia, for instance, a parasite that colonizes in the small intestines. Giardiasis is the most frequently diagnosed disease caused by intestinal parasites in our nation. Though, symptoms, including nausea and vomiting, usually first occur 1-3 weeks after exposure instead of immediately afterward.
Another parasite that can trigger nausea among other symptoms like abdominal cramping is cryptosporidium. Symptoms persist anywhere between a few days to 2 weeks. If your nausea eases off over a few hours, that is probably a great sign.
By the way, both cryptosporidium and giardia are resistant to contamination used for water disinfection.
The only way for you to discover if you’re dealing with bacterial contamination is through testing. You may either send an immediate sample to an accredited lab or buy a test kit and do the research yourself.
If your water tests positive, consider using the Filtered water filter pitcher to filter your drinking water. It is certified by independent third-party labs to meet NSF requirements for the reduction of cryptosporidium and giardia.